foundry/Data/modules/token-variants/templates/protoTokenElement.html

<fieldset class="token-variants-proto">
    <legend>Token Variant Art</legend>
    <div class="form-group">
        <label for="texture">Default Wildcard Image</label>
        <div class="form-fields">
                <button type="button" class="file-picker" data-type="imagevideo" data-target="flags.token-variants.randomImgDefault" title="Select Default Image" tabindex="-1">
                    <i class="fas fa-file-import fa-fw"></i>
                </button>
                <input class="imagevideo" type="text" name="flags.token-variants.randomImgDefault" placeholder="path/image.png" value="{{defaultImg}}"/>
        </div>
        <p class="hint">Rather than randomizing the image upon token creation this default image will be used instead.</p>
    </div>
    <div class="form-group">
        <label>Disable HUD Button</label>
        <div class="form-fields">
          <input type="checkbox" name="flags.token-variants.disableHUDButton" data-dtype="Boolean" {{#if disableHUDButton}}checked{{/if}}>
        </div>
        <p class="notes">Prevent the display of the Token HUD button..</p>
      </div>
</fieldset>